James j



(No Model.)

J. J. JOHNSTON.

COMPOSITION OF MATTER FOR THE MANUFACTURE OF GAS. NO. 312.728.

Patented Feb. 24, 1885.

. INVENTOR.

WITNESSES {UNITED STATES PATENT OFFICE.

JAMES J. JOHNSTON, OF OOLUMBIANA. OHIO, ASSIGNOR TO THE LIGHT AND FUEL COMPANY, OF SAME PLACE.

COMPOSITION OF MATTER FOR THE MANUFACTURE OF GA S.

SPECIFICATION forming part of Letters Patent No. 312,728, dated F r ry 2 1885- Application filed July 26, 1884. (No specimens.)

To aZZ whom, it may concern.-

Be it known that 1, JAMES J. JOHNSTON, of Oolumbiana, in the county of Oolunibiana and State of Ohio, have invented a new and useful 5 Improvement in Composition of Matter for the Manufacture of Gas; and I do hereby declare the following to be a full, clear, and exact description thereof.

The drawing shows a side elevation of the apparatus used.

My invention relates to a new composition of matter for the manufacture of gas; and it consists of pulverized bituminous coal having the sulphur mechanically separated therefrom, and oleaginous matter and water combined with said pulverized and desulphurized coal, so as to form a homogeneous compound, which will hereinafter more fully and at large appear. i

To enable others skilled in the art with which my invention is most nearly connected to make and use it, I will proceed to describe it.

I pulverize bituminous coalor take the slack of said coal, and separatemechanically the sulphur therefrom by the means herein described.

In the accompanying drawing, A represents a tank having compartments B C D E, doors f g h, chute z', water-supply pipe j, and waste or flow-off pipe k. To one end of the tank, at Z, is pivoted a hopper, F, which may be agitated by an eccentric wheel m, which, lifting said hopper and allowing it to strike against the upper end of the post a, will jar it so that the pulverized coal will be gradually and evenly distributed from the -lower end of said hopper upon the water flowing over the chute The pipe j may be connected with a water-supply, and when the tank A is sufficiently filled with water,

so that a current is flowing down the chute t downfiowing current of water passing over chute i, and said coal is carried on the current of water over the compartment 0 and partition 0 to compartments D E, where it is collected by any suitable means, and that which has become saturated with water and to a temperature of from about ninety (90) to one hundred and twenty (120) degrees Fahrenheit, then to each one hundred (100) pounds (avoirdupois) of said dried and heated coal is added about twenty (20) pounds of water heated to about the same temperature. The coal should be spread out and the water evenly sprinkled over it, and then the coal thoroughly stirred, after which the coal thus treatedis again spread out, and about ten (10) pounds of petroleum-oil is sprinkled over it, and then the coal is again thoroughly stirred, so as to form a homogeneous compound consisting of bituminous coal, oil, and water, from which composition of matter a very superior quality of gas may be manufactured for the purposes of light and heat.

The proportions of oil and water may be varied in accordance with the variation in the quantity of oleaginous mattter and bitumen in the coal.

Having thus described my improvement, what I claim is 1. The composition of matter hereinbefore described for the manufacture of gas, consisting of pulverized and desulphurized coal, water, and oil, forming the homogeneous mixture herein specified.

2. In the manufacture of the composition of matter hereinbefore described, .the process which consists in mechanically desulphuriz- In witness whereof I have hereunto set my hand this 21st day of June, A. D. 1884.

JAMES J. JOHNSTON.

ing pulverized coal, then heating the same to I increase its water-absorbing capacity, sprinkling it with Water, and finally with oil, thereby forming a-homogeneous mixture where l l I Witnesses:

A. O. JOHNSTON, A. C. ELLIs.

in the Water is retained by the surrounding oil-particles, substantially as shown and de scribed. 

